monochrom introduced the concept of 'Massive Multiplayer
Thumb-Wrestling' in 2004.

The
principle of thumb-wrestling is simple. Two players take each
others right hand and entangle their fingers - except the
thumbs - forming a fist. The players then try to catch and
freeze the opponent's thumb.

By
forming a star, it is also possible to play the game with
three or four participants. The left hands are also free to
hook up with even more players. Again a connection with up
to 4 players is possible. By Massive Thumb-Wrestling according
to the rules described above unlimited amounts of players
can connect to join a Multiplayer Thumb-Wrestling Network.
As the number of players is unlimited, global thumb-wrestling
may emerge through self-sustaining peer-to-peer networks and
ad-hoc socializing.

monochrom offered some models to play the game and various
network patterns were tested. Everybody won!